Self-employed

@KDW5 If you use TurboTax Desktop, then your tax returns are only saved to your computer, not to your TurboTax account online. So, if you are using different computers and are not sharing access to each other's files, you won't be able to see each other's returns. 

You can also password protect each TurboTax Desktop return, if you are sharing a computer or are on a network with the others. You can do this by opening a return and then selecting File>Set password.